Filthy Friends
type: MusicGroup
description: alt=The band onstage|thumb|Filthy Friends in 2017, from left to right: Kurt Bloch, Scott McCaughey, Corin Tucker, Peter Buck (Linda Pitmon is obscured) Filthy Friends is an alt-rock supergroup based i
popularity: 3
followers: 4069
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc39dcb033c99be7a2a44b9472ccb2dd45bebdae5c7916d03fbcea9e858d90517
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b36aa44-5910-4335-ad33-09099391838b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b36aa44-5910-4335-ad33-09099391838b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b36aa44-5910-4335-ad33-09099391838b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc39dcb033c99be7a2a44b9472ccb2dd45bebdae5c7916d03fbcea9e858d90517","name":"Filthy Friends","registered_at":"2026-06-20T03:38:50Z","symbol":"NIM1500475","token_address":"0xc5ce0dfb27361b29358c1411965df27576dc83f0","type":"artist","uuid":"9b36aa44-5910-4335-ad33-09099391838b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39dcb033c99be7a2a44b9472ccb2dd45bebdae5c7916d03fbcea9e858d90517. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b36aa44-5910-4335-ad33-09099391838b.json and https://artists.proofprofile.net/proofs/artist/9b36aa44-5910-4335-ad33-09099391838b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0xc39dcb033c99be7a2a44b9472ccb2dd45bebdae5c7916d03fbcea9e858d90517","name":"Filthy Friends","registered_at":"2026-06-20T03:38:50Z","symbol":"NIM1500475","token_address":"0xc5ce0dfb27361b29358c1411965df27576dc83f0","type":"artist","uuid":"9b36aa44-5910-4335-ad33-09099391838b"}
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  type: MusicAlbum
  date published: 2016-10-21
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  type: MusicAlbum
  date published: 2017-04-22
album: Any Kind of Crowd
  type: MusicAlbum
  date published: 2017-04-22
album: Any Kind of Crowd
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  type: MusicAlbum
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album: The Arrival
  type: MusicAlbum
  date published: 2017-06-20
album: The Arrival
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  date published: 2017-06-20
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  date published: 2017-07-28
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  date published: 2017-07-28
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  type: MusicAlbum
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  type: MusicAlbum
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album: Emerald Valley (Abridged Version)
  type: MusicAlbum
  date published: 2019-05-03
album: Emerald Valley
  type: MusicAlbum
  date published: 2019-05-03